This award availability covers flights from Chicago O'Hare (ORD) to London Heathrow (LHR) on April 28, 2026. Premium Economy on this transatlantic route typically runs around 80,000 miles through United MileagePlus, so 50,000 miles represents a meaningful discount for families or travelers looking to stretch their points further.

Availability appears strong right now, with plenty of seats showing for this date. Premium Economy offers a nice middle ground for longer flights—more legroom, better meals, and priority boarding compared to standard economy, without the points outlay required for business class.

One practical consideration: April is shoulder season for London travel, meaning milder weather and fewer crowds than summer months. If you have flexibility, this could be a good window for a family trip before peak pricing kicks in.

Award availability at this level can shift quickly, so if this fits your travel plans, it's worth locking in sooner rather than later.

How to book

Search for award availability and book directly through United at: https://www.united.com/en/us/book-flight/united-awards/search